降水量观测误差包括随机误差和系统误差。
Station error in precipitation observation consists both random error and systematic error.
此外在不考虑卫星观测平台误差的情况下，还设计了直接产生随机测角误差的算法。
Furthermore, an algorithm that can create the random Angle error directly is devised without considering the satellite observation platform error.
采用随机干扰方法，在地震观测误差容许值范围内，对地震观测资料进行人为随机干扰。
An artificial random disturbance is carried out for some seismological observation data in the allowance range of seismological observational error with random disturbance method.
采用随机干扰方法，在地震观测误差容许值范围内，对地震观测资料进行人为随机干扰。
An artificial random disturbance is carried out for some seismological observation data in the allowance range of seismological observational error with random disturbance method.
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